All names: SDSS J110140.35+521807.1, Gaia DR3 836517723541888000, SDSS J110140.41+521806.6, GALEX J110140.3+521807, Gaia EDR3 836517723541888000, SDSS J110140.41+521806.68, Gaia DR2 836517723541888000, J1101+5218
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Coutu et al. 2019 | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 01 40.42 (0.1) | 11 01 40.35 | 11 01 40.34 | 11 01 40.42 (0.1) | 11 01 40.42 | 11 01 40.34 (0.1) | |||||
| Declination | 52 18 06.53 (0.1) | 52 18 07.19 | 52 18 07.26 | 52 18 06.55 (0.2) | 52 18 06.53 | 52 18 07.27 (0.1) | |||||
| Spectral type | DQ | DQ: | DQ | DQ | DQ | ||||||
| Effective temperature | [K] | 8431.0 (235) | 9747.0 (408) | 8658.0 (222) | |||||||
| log(g) | [cgs] | 7.86 | 8.00 (0) | 7.91 (0.07) | |||||||
| Mass | [M☉] | 0.4986 | 0.524 (0.05) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.8130 | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | -5.1096 (0.1) | -5.51 (0.5) | |||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 5.23 (0.2) | 5.22 | 5.22 (0.3) | 5.23 | 5.23 (0.2) | |||||
| Distance | [pc] | 191.33 (8) | 191.62 (11) | 191.62 (11) | 191.33 | 191.33 (8) | |||||
| Composition | He | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 44.91439224 (0.2) | 45.27509941 (0.4) | 44.914 (0.2) | |||||||
| Proper motion (declination) | [mas/yr] | -46.25402695 (0.2) | -45.77950613 (0.5) | -46.254 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.36 (0.03) | 19.37 (0.03) | 19.37 (0.03) | ||||||||
| g magnitude | 19.21 (0.01) | 19.22 (0.02) | 19.21 (0.01) | ||||||||
| r magnitude | 19.22 (0.01) | 19.22 (0.03) | 19.22 (0.01) | ||||||||
| i magnitude | 19.29 (0.02) | 19.28 (0.03) | 19.29 (0.02) | ||||||||
| z magnitude | 19.50 (0.07) | 19.50 (0.07) | 19.50 (0.07) | ||||||||
| G magnitude | 19.16 (0.01) | 19.20 | 19.16 | 19.16 (0.003) | |||||||
| BP magnitude | 19.23 (0.01) | 19.18 | |||||||||
| RP magnitude | 19.02 (0.03) | 18.98 | |||||||||
| Pan g magnitude | 19.21 (0.02) | ||||||||||
| Pan r magnitude | 19.22 (0.01) | ||||||||||
| Pan i magnitude | 19.35 (0.007) | ||||||||||
| Pan z magnitude | 19.48 (0.03) | ||||||||||
| Pan y magnitude | 19.56 (0.06) | ||||||||||
| E(B-V) | 0.015 | ||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.